US 6,817,403 B2 · Matchplate molding machine for forming sand molds

Abstract

A method and automated matchplate molding machine for blowing sand horizontally into the horizontally spaced open ends of the cope and drag flasks with a perpendicular trajectory relative to a vertically aligned matchplate between the cope and drag flasks. Sand is pneumatically blown horizontally from sand magazines through opposing ends of the cope and drag flasks toward the matchplate. The cope and drag flask can be turned between the upright and rotated positions. The machine disassembles the mold flask and removes the mold in the upright position and fills the mold with sand horizontally when in the rotated position. The molding machine includes a rotating turret that carries two mold flasks between a mold forming station and a draw station. The mold flasks may also be rotated about a horizontal axis relative to the turret to facilitate turning of the mold flasks between upright and rotated positions.

Claims31

Dependent claims

A matchplate molding machine, comprising:

a mold flask assembly comprising a cope flask, a drag flask and a matchplate between the cope and drag flasks, the matchplate having a pattern for forming a cavity in a sand mold;
a pair of horizontally spaced sand magazines having a blow heads adapted to fill the cope flask and the drag flask with sand horizontally, the sand magazines having a fill position wherein the flask assembly is horizontally between the sand magazines;
and
wherein a vertically extending parting line exists between the drag flask and the cope flask in the fill position, with the cope flask and drag flask disposed horizontally adjacent.

1 more element

A matchplate sand molding machine for making molds, comprising:

a pair of mold flask assemblies comprising a cope flask, a drag flask and a matchplate between the cope and drag flasks, the matchplate having a pattern for forming a cavity in a sand mold;
a sand molding forming station;
a mold draw station adjacent the sand mold forming station;
a turret between the sand mold forming station and the mold draw station, the turret being rotatable about a vertical axis, each mold flask assembly being rotatably mounted to the turret for rotation about horizontal axes;
a first actuator rotating the turret about the vertical axis to move the mold flask assemblies between the mold draw station and the sand mold forming station;
second actuators carried by the turret independently rotating the mold flask assemblies about first and second about horizontal axes;
a pair of horizontally spaced sand magazines movable horizontally relative to each other, the first and second sand magazines adapted to engage opposing ends of the cope flask and the drag flask to fill sand into the cope and drag flasks horizontally;
and
at least one third actuator driving the first and second sand magazines toward and away from each other.

6 more elements

Dependencies are inferred from the claim text.

Matchplate molding machine for forming sand molds

Life of this patent

Matchplate molding machine for forming sand molds

Life of this patent

Abstract

Claims31